Taraxacum recognitum Štěpánek & Kirschner, 2022

Štěpánek, Jan & Kirschner, Jan, 2022, A hotspot of endemism: Oreophytic Taraxacum species (Compositae, Crepidinae) in the mountains of Bulgaria, Phytotaxa 569 (1), pp. 1-139 : 117-118

publication ID

https://doi.org/ 10.11646/phytotaxa.569.1.1

DOI

https://doi.org/10.5281/zenodo.7235468

persistent identifier

https://treatment.plazi.org/id/03B73C51-6736-FF9A-FF66-F934FE4EF7ED

treatment provided by

Plazi

scientific name

Taraxacum recognitum Štěpánek & Kirschner
status

sp. nov.

6. Taraxacum recognitum Štěpánek & Kirschner View in CoL , sp. nov.

Type:— Bulgaria, montes Rodopi , opp. Čepelare , pars montium Černatica , pag. Chvojna , circum montem Goljam Persenk (2091 m), graminosis humidis secundum viam turisticam lutee signatam ca. 1.5–2 km supra locum (situ occident.) Skalni Mostove , sub saltu Groben prochod inter montes Goljam Persenk et Persenk (2074 m), ca. 1800–1900 m s.m., 24 Jul 1998, R. Bělohlávková, J. Štěpánek, V. D. Vladimirov & D. Petkova, cultivated as TaB 14 ( B 14 ), collected in 2000 ( PRA, no. det. 35751, holotype; isotype: PRA, no. det. 27342, and duplicates) .

Etymology:—Explored (derived from Latin, recognosco, recognoscere, inspect, examine).

Exsiccates:— Taraxaca Exs., no. 1334–1338.

Diagnosis:—Species insignis acheniis saturate brunneis vel saturate cinnamomeo-brunneis, corpore spinulis crassiusculis densis sursum curvatis obsito, in pyramidem cylindricam, 0.7–1.0 mm longam abrupte abeunte, pappo sordide albido usque brunnescenti-albido, foliis lutescenti-viridibus, lobis lateralibus conspicue hamato-recurvis, et petiolis alatis pallidis.

Plants medium-sized, 8–14 cm tall. Plant base without tunic, ± glabrous among petiole bases. Petiole winged to broadly winged, pale greenish, 2–3 cm long. Leaf rosettes compact, leaves suberect-patent to subprostrate, relatively stiff, light green to yellowish green, not spotted, sparsely arachnoid to ± glabrescent, oblanceolate or broadly oblanceolate in outline, usually 5–12 × 2–3 cm, deeply pinnatisect; terminal segment subdominant, broadly triangular to broadly helmet-shaped in outline, usually 1–2 × 1.5–3 cm, obtusely acute to acute, distal margin convex, very often with a single deep incision in the middle on each side, otherwise ± entire, or with a few minute teeth, basal lobules hamaterecurved, often attenuate, proximal margin concave, entire; lateral segments in (2) 3–4 (5) pairs, bird-wing-like or ± linear-triangular, hamate-recurved, often abruptly narrowing from a broader base in a narrow distal part, usually 1–1.5 cm long, 0.4–1.1 cm wide at base, distal margin convex or sigmoid, entire or with a long narrow tooth near the base, or with a few minute teeth, proximal margin concave to ± straight, entire; interlobes distinct, usually 2–10 × 2–5 mm, surface green, margins not bordered, ± raised, usually with 1–2 narrow teeth to 6 mm long, sometimes entire; mid-vein pale or suffused purplish-brownish. Scapes sparsely arachnoid, later glabrescent, pale greenish, suffused light purplish after anthesis, ± equalling leaves or slightly longer. Capitulum deep yolk yellow, 3–3.5 cm wide, flat to subconvex. Involucre olivaceous-green, sometimes slightly pruinose, broadly rounded to rounded and ca. 9–10 mm wide at base. Outer phyllaries 11–15, usually loosely appressed (± tightly so before anthesis), later during anthesis getting erectpatent, lanceolate to ovate-lanceolate, reaching 1/2–2/3 of the inner ones, (5–) 6–8 × 2.5–3.5 mm, abaxially light green to deep olivaceous-green, darker distally and on the middle line, with a relatively abrupt transition in a membranous or whitish border ca. 0.2–0.3 mm wide, margin distally minutely ciliate, apex ± flat; inner phyllaries ca. 12 mm long, usually darker than the outer ones, of ± unequal width. Outer ligules ± flat, striped dark grey outside, apical teeth grey-black, inner ligules canaliculate, their apical teeth smoky yellow. Stigmas long, medium discoloured, light greyish-greenish, hairs of pubescence with a dark apex. Pollen present, pollen grains irregular in size.Achenes medium deep brown, often with a dark cinnamon hue, 3.8–4.3 × 1.0– 1.2 mm, body with distinct longitudinal lateral ridges, more distinct in upper 1/3 of the body, slightly flattened (of different shapes from the lateral and ventral views), body in upper 1/3 relatively densely spinulose, often with ± coarse spinules usually ± curved upwards, body ± abruptly narrowing into a subcylindrical to cylindrical cone (0.7–) 0.8–1.0 mm long, often with a few minute spinules; beak 6–8 mm long, pappus dirty white to almost brownish white, 5–6 mm long. – Agamosperm. – Fig. 70 View FIGURE 70 , 71, 72A.

Diagnostic notes:— Taraxacum recognitum , a member of the group with T. pseudorecognitum and T. pandum , is distinguished by its brown to deep brown-cinnamon achene colour. From the most closely allied species, T. pseudorecognitum , it also differs in the conspicuously hamate-recurved lateral segments of leaves, pale petioles or a very different character of achene spinulosity.

Distribution and habitat:— Taraxacum recognitum , presumably endemic to Bulgaria, is recorded from the Stara Planina and the Rhodopes, between 1600 and 2150 m. It grows in wet grasslands and meadows, often along paths, from the supramontane to subalpine belts. Its IUCN conservation status is estimated as LC.

Specimens examined:— BULGARIA. Stara Planina, Zlatiško-Tetevenska planina, Teteven, village of Ribarica   GoogleMaps , W. of the summit of Mt. Vežen   GoogleMaps (2198 m), ca. 2100 m, 20 Jul 1998, R. Bělohlávková, J. Štěpánek, V. D. Vladimirov & D. Petkova, cultivated as TaB 1c ( PRA, no. det. 26294) ; Ibidem, JŠ 6990 ( PRA, no. det. 27363) ; Ibidem, TaB 1b ( PRA, no. det. 27362) ; Ibidem, TaB 1a ( PRA, no. det. 27361). – Zlatiško-Tetevenska   GoogleMaps planina, Teteven   GoogleMaps , village of Ribarica   GoogleMaps , Mt. Vežen   GoogleMaps (2198 m), ca. 2150 m, 20 Jul 1998, R. Bělohlávková, J. Štěpánek, V. D. Vladimirov & D. Petkova, cultivated as TaB 2a ( PRA, no. det. 27345). Zlatiško-Tetevenska planina, Teteven , village of Ribarica , W. of the summit of Mt. Vežen (2198 m), ca. 2100–2150 m, 42° 45’ N, ca. 24° 24’ E, 20 Jul 1998, R. Bělohlávková, J. Štěpánek, V. D. Vladimirov & D. Petkova, cultivated as JŠ 6784 ( PRA, no. det. 27333). GoogleMaps Zlatiško-Tetevenska planina, Teteven , village of Ribarica , Mt. Vežen (2198 m), a saddle between Mt. Jumruka and Mt. Kavladan, ca. 300 m NE. of the Echo Hut, ca. 1600 m, ca. 42° 46’ N, ca. 24° 28’ E, 21 Jul 1998, J. Štěpánek, R. Bělohlávková, V. D. Vladimirov & D. Petkova, cultivated as JŠ 7563 ( PRA, no. det. 27360) GoogleMaps ; Ibidem, JŠ 7558 ( PRA, no. det. 27353) GoogleMaps ; Ibidem, JŠ 7564 ( PRA, no. det. 27332). GoogleMaps Zlatiško-Tetevenska planina, Teteven , village of Ribarica , Mt. Vežen   GoogleMaps (2198 m), W. slopes of Mt. Jumruka   GoogleMaps , 1600–1700 m, 42° 45–46’ N, ca. 24° 28’ E, 20 Jul 1998, J. Štěpánek, R. Bělohlávková, V. D. Vladimirov & D. Petkova, cultivated as JŠ 7578 ( PRA, no. det. 27359) ; Ibidem, JŠ 7577 ( PRA, no. det. 27358) ; Ibidem, JŠ 6993 ( PRA, no. det. 27339) ; Ibidem, JŠ 6992 ( PRA, no. det. 27331) ; Ibidem, JŠ 6777 ( PRA, no. det. 27329) . – Rodopi, Čepelare, the Černatica Mts., Chvojna village   GoogleMaps , Mt. Goljam Persenk   GoogleMaps (2091 m), along the tourist path ca. 2–3 km W. of Skalni Mostove   GoogleMaps , ca. 1900–1950 m, ca. 41° 49’ N, 24° 32–33’ E, 24 Jul 1998, R. Bělohlávková, J. Štěpánek, V. D. Vladimirov & D. Petkova, cultivated as JŠ 6942 ( PRA, no. det. 27352) ; Ibidem, JŠ 6941 ( PRA, no. det. 27351) ; Ibidem, JŠ 6945 ( PRA, no. det. 27349) ; Ibidem, JŠ 6940 ( PRA, no. det. 27336). Čepelare, Chvojna village   GoogleMaps , around Mt. Goljam Persenk   GoogleMaps (2091 m), ca. 300–800 m W. of Skalni Mostove , ca. 1700–1800 m, 24 Jul 1998, R. Bělohlávková, J. Štěpánek, V. D. Vladimirov & D. Petkova cultivated as B 11 ( PRA, no. det. 27357). Čepelare   GoogleMaps , the Černatica Mts.   GoogleMaps , Chvojna village   GoogleMaps , around Mt. Goljam Persenk   GoogleMaps (2091 m), 1.5–2 km W. of Skalni Mostove   GoogleMaps , 1800–1900 m, ca. 41° 49’ N, 24° 33–34’ E, 24 Jul 1998, J. Štěpánek et al., cultivated as JŠ 6921 ( PRA, no. det. 27356) ; Ibidem, JŠ 6919 ( PRA, no. det. 27346) ; Ibidem, JŠ 6925 ( PRA, no. det. 27341) ; Ibidem, JŠ 6924 ( PRA, no. det. 27335) ; Ibidem, JŠ 6794 ( PRA, no. det. 27334) ; Ibidem, JŠ 6920 ( PRA, no. det. 27330) ; Ibidem, JŠ 6923 ( PRA, no. det. 27328) ; Ibidem, JŠ 6922 ( PRA, no. det. 27327) ; Ibidem, TaB 13 ( PRA, no. det. 27344). Čepelare , the Černatica Mts. , Chvojna village , around Mt. Goljam Persenk (2091 m), in the pass between Mt. Goljam Persenk and Persenk, ca. 2 km W. of Skalni Mostove , ca. 1900–1950 m, ca. 41° 49’ N, ca. 24° 33’ E, 24 Jul 1998, J. Štěpánek, R. Bělohlávková, V. D. Vladimirov & D. Petkova, cultivated as JŠ 6967 ( PRA, no. det. 27355) GoogleMaps ; Ibidem, JŠ 6966 ( PRA, no. det. 27354) GoogleMaps ; Ibidem, JŠ 6958 ( PRA, no. det. 27350) GoogleMaps ; Ibidem, JŠ 6962 ( PRA, no. det. 27348) GoogleMaps ; Ibidem, JŠ 6963 ( PRA, no. det. 27347) GoogleMaps ; Ibidem, JŠ 6971 ( PRA, no. det. 27337) GoogleMaps ; Ibidem, JŠ 6965 ( PRA, no. det. 27340) GoogleMaps ; Ibidem, JŠ 6961 ( PRA, no. det. 26163). GoogleMaps The Rodopi   GoogleMaps , the Čepelare Mts.   GoogleMaps , Chvojna village   GoogleMaps , around Mt. Goljam Persenk   GoogleMaps (2091 m), wet mossy places along a brook, ca. 1 km W. of Skalni Mostove   GoogleMaps , ca. 1800 m, 24 Jul 1998, R. Bělohlávková, J. Štěpánek, V. D. Vladimirov & D. Petkova, cultivated as TaB 12 ( PRA, no. det. 27343). Čepelare   GoogleMaps , the Černatica Mts.   GoogleMaps , Chvojna village   GoogleMaps , around Mt. Goljam Persenk   GoogleMaps (2091 m), in the pass between Mt. Goljam Persenk and Persenk, ca. 2 km W. of Skalni Mostove   GoogleMaps , ca. 1900–2000 m, ca. 41° 49–50’ N, ca. 24° 33’ E, 24 Jul 1998, J. Štěpánek, R. Bělohlávková, V. D. Vladimirov & D. Petkova, cultivated as JŠ 6973 ( PRA, no. det. 27338) .

R

Departamento de Geologia, Universidad de Chile

J

University of the Witwatersrand

V

Royal British Columbia Museum - Herbarium

PRA

Institute of Botany, Academy of Sciences

E

Royal Botanic Garden Edinburgh

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF